Journal Highlights

Relativistic electrons uncovered with NASA’s Van Allen Probes

Blog—Earth’s radiation belts, two doughnut-shaped regions of charged particles encircling our planet, were discovered over fifty years ago, but their behavior is still not completely understood. Now, new observations from NASA’s Van Allen Probes mission shows that the fastest, most energetic electrons in the inner radiation belt are not present as much of the time as previously thought. The results, presented in a new study in the Journal of Geophysical Research: Space Physics, a journal of the American Geophysical Union, show there typically isn’t as much radiation in the inner belt as previously assumed – good news for spacecraft flying in the region…more